The current study aimed to examine the unique contribution of personal and environmental factors to explain graphomotor skills in typically developing preschoolers and first-year elementary school students. A convenience sample was recruited of 136 Israeli children aged three–seven years. Graphomotor skills were assessed using the Gilboa Functional Test (GIFT); personal and environmental factors were assessed using a demographic questionnaire and the Home Literacy Experiences Questionnaire (HLEQ). A hierarchical multiple linear regression analysis revealed that home literacy and educational approach accounted for 43.1% of the variance of graphomotor skills (R2 = 40.4, p < 0.000), each providing a unique contribution to the explained variance after controlling for age, gender, and spoken language. Generally, our results supported the bioecological model, with proximal factors (home literacy and educational approach) having a greater influence on child graphomotor skills than distal factors (parental socioeconomic and immigration status). By highlighting the role of environmental factors in graphomotor development, these results can be used as a conceptual framework for developing early intervention programs.